ASoC: rt5645: Add the control of ClassD modulator Speaker Gain Ratio

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/codecs/rt5645.c

@@ -469,6 +469,14 @@ static const DECLARE_TLV_DB_RANGE(bst_tlv,
 	8, 8, TLV_DB_SCALE_ITEM(5200, 0, 0)
 );
 
+/* {-6, -4.5, -3, -1.5, 0, 0.82, 1.58, 2.28} dB */
+static const DECLARE_TLV_DB_RANGE(spk_clsd_tlv,
+	0, 4, TLV_DB_SCALE_ITEM(-600, 150, 0),
+	5, 5, TLV_DB_SCALE_ITEM(82, 0, 0),
+	6, 6, TLV_DB_SCALE_ITEM(158, 0, 0),
+	7, 7, TLV_DB_SCALE_ITEM(228, 0, 0)
+);
+
 static const struct snd_kcontrol_new rt5645_snd_controls[] = {
 	/* Speaker Output Volume */
 	SOC_DOUBLE("Speaker Channel Switch", RT5645_SPK_VOL,
@@ -476,6 +484,10 @@ static const struct snd_kcontrol_new rt5645_snd_controls[] = {
 	SOC_DOUBLE_TLV("Speaker Playback Volume", RT5645_SPK_VOL,
 		RT5645_L_VOL_SFT, RT5645_R_VOL_SFT, 39, 1, out_vol_tlv),
 
+	/* ClassD modulator Speaker Gain Ratio */
+	SOC_SINGLE_TLV("Speaker ClassD Playback Volume", RT5645_SPO_CLSD_RATIO,
+		RT5645_SPK_G_CLSD_SFT, 7, 0, spk_clsd_tlv),
+
 	/* Headphone Output Volume */
 	SOC_DOUBLE("Headphone Channel Switch", RT5645_HP_VOL,
 		RT5645_VOL_L_SFT, RT5645_VOL_R_SFT, 1, 1),

sound/soc/codecs/rt5645.h

@@ -668,6 +668,10 @@
 #define RT5645_M_SV_R_SPM_R			(0x1 << 0)
 #define RT5645_M_SV_R_SPM_R_SFT			0
 
+/* SPOMIX Ratio Control (0x4a) */
+#define RT5645_SPK_G_CLSD_MASK			(0x7 << 0)
+#define RT5645_SPK_G_CLSD_SFT			0
+
 /* Mono Output Mixer Control (0x4c) */
 #define RT5645_M_OV_L_MM			(0x1 << 9)
 #define RT5645_M_OV_L_MM_SFT			9